Brave New World' director Julius Onah tells PEOPLE he found getting to meet and direct Harrison Ford in the latest Marvel Cinematic Universe movie "mind-blowing" given his love for Ford's movies like 'Indiana Jones' and 'Star Wars.

Marvel Studios employee who worked on 'Captain America 4' describes tensions on set: Harrison Ford “was very much a diva."

Brave New World sees Harrison Ford replace the late William Hurt as Thaddeus Ross, the newly elected President of the United States. Now, Marvel fans are discussing other MCU recasts on Reddit, including Mark Ruffalo replacing Edward Norton as Bruce Banner and Don Cheadle taking over from Terrance Howard as James "Rhodey" Rhodes.